Nb-doped SrTiO3-based high-temperature Schottky solar cells

Fumimasa Horikiri, Tomoyuki Ichikawa, Li Qun Han, Atsushi Kaimai, Keiji Yashiro, Hiroshige Matsumoto, Tatsuya Kawada, Junichiro Mizusaki

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The high-temperature characteristics of donor-doped SrTiO 3/indium tin oxide (ITO) Schottky solar cells were investigated by current-voltage and impedance analyses at various oxygen partial pressures (PO2) (1-10-4 bar) at 873 K. Both current-voltage and impedance characteristics showed a reversible oxygen partial pressure dependence. The junctions demonstrated the photovoltaic effect even at high temperatures, which means the nonohmic behavior of the heterojunction remains even at high temperatures. The highest open circuit voltage and short circuit current density were 123 mV and 1.37 mA cm-2, respectively, at 1 bar O2 under 261 mW cm-2 UV irradiation. Incident photon-to-current conversion efficiency and energy conversion efficiency improved as PO2 increased. The influence of oxygen partial pressure on the solar cell characteristics is discussed.

Original languageEnglish
Pages (from-to)8023-8026
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
Volume44
Issue number11
DOIs
Publication statusPublished - Nov 9 2005

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Partial pressure
partial pressure
Solar cells
solar cells
Conversion efficiency
Oxygen
oxygen
impedance
Photovoltaic effects
photovoltaic effect
energy conversion efficiency
Electric potential
electric potential
Open circuit voltage
short circuit currents
Tin oxides
open circuit voltage
Energy conversion
Short circuit currents
indium oxides

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Nb-doped SrTiO3-based high-temperature Schottky solar cells. / Horikiri, Fumimasa; Ichikawa, Tomoyuki; Han, Li Qun; Kaimai, Atsushi; Yashiro, Keiji; Matsumoto, Hiroshige; Kawada, Tatsuya; Mizusaki, Junichiro.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, Vol. 44, No. 11, 09.11.2005, p. 8023-8026.

Research output: Contribution to journalArticle

Horikiri, F, Ichikawa, T, Han, LQ, Kaimai, A, Yashiro, K, Matsumoto, H, Kawada, T & Mizusaki, J 2005, 'Nb-doped SrTiO3-based high-temperature Schottky solar cells', Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, vol. 44, no. 11, pp. 8023-8026. https://doi.org/10.1143/JJAP.44.8023
Horikiri, Fumimasa ; Ichikawa, Tomoyuki ; Han, Li Qun ; Kaimai, Atsushi ; Yashiro, Keiji ; Matsumoto, Hiroshige ; Kawada, Tatsuya ; Mizusaki, Junichiro. / Nb-doped SrTiO3-based high-temperature Schottky solar cells. In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 2005 ; Vol. 44, No. 11. pp. 8023-8026.
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